Multiple Similar Elements Or Sections (e.g., Built Up, Etc.) Patents (Class 96/100)
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Patent number: 3984249Abstract: A process is disclosed for increasing the sensitivity of negative-forming radiation sensitive silver halide layers by treating such silver halide layers with hydrogen. The layers thus treated manifest a reduced or substantial absence of reciprocity law failure as well as increased sensitivity to electromagnetic radiation. The products so treated can contain spectral and chemical sensitizers and/or color forming dye-couplers and/or other suitable addenda conventionally employed with photosensitive elements. The products can also exhibit the ability to increase still further in photosensitivity even after imagewise exposure thereof upon prolonged storage of the exposed products under ambient conditions before they are developed.Type: GrantFiled: February 4, 1975Date of Patent: October 5, 1976Assignee: Eastman Kodak CompanyInventors: Thomas A. Babcock, William C. Lewis, Thomas H. James
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Patent number: 3984432Abstract: The present invention relates to new compounds having an active methylene group or phenolic hydroxyl group and therefore capable of being used as photographic color couplers. The new compounds contain at least one radical of a phosphoric acid diester, phosphonic acid diester, phosphoric acid diamide, phosphonic acid diamide, phosphoric acid ester-amide or phosphonic acid ester-amide.Type: GrantFiled: February 27, 1974Date of Patent: October 5, 1976Assignee: Ciba-Geigy AGInventors: Bernhard Piller, Paul Tschopp, Thomas Stauner, Walter Heierli
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Patent number: 3984245Abstract: A photographic photosensitive material comprising a support having thereon at least one photosensitive silver halide emulsion layer, at least one photosensitive silver halide emulsion layer containing a compound which releases an organic development inhibitor on development, and a colloid layer containing a basic synthetic polymer containing therein the repeating unit represented by the formula (I) ##EQU1## wherein R.sub.1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R.sub.2 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an aryl group; m is 1 or 2; n is 1 or 2; q is 1 or 2; and A.sub.1 represents a group containing a nitrogen atom which forms a secondary amino group, a tertiary amino group or a quaternary ammonium group, and A.sub.1 may combine with R.sub.2 ; or the formula (II) ##EQU2## wherein A.sub.2 represents a hydrogen atom or a substituted or unsubstituted alkyl group; A.sub.Type: GrantFiled: October 9, 1974Date of Patent: October 5, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Hirose, Keisuke Shiba
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Patent number: 3980481Abstract: Direct-positive silver halide emulsions comprising fogged silver halide grains and an electron acceptor are described wherein the emulsion is spectrally sensitized by means of 2-aryl-indolocarbocyanines. The combination of electron acceptors and these spectral sensitizers provides super-sensitizing effects that are not impaired by the presence of color couplers.Type: GrantFiled: January 11, 1974Date of Patent: September 14, 1976Assignee: AFGA-GEVAERT N.V.Inventors: Theofiel Hubert Ghys, Willy Joseph Vanassche, Herman Alberik Pattyn
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Patent number: 3980479Abstract: Photographic elements, processes for forming images in photographic elements and new compounds are disclosed. Generally, the invention relates to immobile compounds which can be used to provide positive images from negative recording-developing photographic materials such as negative silver halide emulsions. The compounds contain a photographically useful group such as a dye or dye precursor and are capable of releasing said photographically useful group under alkaline conditions, and are also capable of reaction with an oxidized silver halide developing agent before substantial release of said photographically useful group occurs, to provide a reaction product having a substantially lower rate of release of said photographically useful group. In specific embodiments, the compounds of this invention contain an electrophilic cleavage group located in the linkage between a ballast group and a photographically useful moiety wherein said electrophilic cleavage group is a carbamic acid derivative.Type: GrantFiled: October 2, 1974Date of Patent: September 14, 1976Assignee: Eastman Kodak CompanyInventors: Donald Lee Fields, Richard Paul Henzel, Philip Thiam Shin Lau, Richard Allan Chasman
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Patent number: 3977882Abstract: A silver halide photographic emulsion which is spectrally sensitized so that it has a maximum sensitivity wave length within the region of 580-640 nm, characterized by containing in a super sensitizing amount the combination of at least one carbocyanine dye represented by the general formula (I) and at least one of the dyes selected from the group consisting of dyes represented by the general formula (II): ##EQU1## WHEREIN Z.sub.1 represents the grouping necessary for the formation of .beta.-naphthothiazole or .beta.-naphthoselenazole ring, Z.sub.2 represents the grouping necessary for the formation of benzoxazole ring, A.sub.1 represents a hydrogen atom, an alkyl radical or an aryl radical, R.sub.1 represents an alkyl group and R.sub.2 represents a hydroxyalkyl group, a carboxyalkyl group or an alkyl group substituted with a sulfo group, X.sub.1 represents an acid anion group, an l is 1 or 2, the dye forming an intramolecular salt when l is 1: ##EQU2## WHEREIN Z.sub.3 and Z.sub.Type: GrantFiled: July 17, 1975Date of Patent: August 31, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Akira Sato
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Patent number: 3976492Abstract: A silver halide photographic emulsion containing at least one sensitizing dye represented by the formula (I) ##EQU1## wherein Z.sub.1 represents a group of atoms necessary to complete a thiazole nucleus, a benzothiazole nucleus, a benzoselenazole nucleus, a naphthothiazole nucleus or a naphthoselenazole nucleus; Z.sub.2 represents a group of atoms necessary to complete a naphthothiazole nucleus or a naphthoselenazole nucleus; and R.sub.1 and R.sub.2, which may be the same or different, each represents an aliphatic group and at least one of R.sub.1 and R.sub.2 is an aliphatic group containing a carboxyl group or a sulfo group; and at least one sensitizing dye represented by the formula (II) ##EQU2## wherein Z.sub.3 and Z.sub.4 which may be the same or different, each represents a group of atoms necessary to complete a thiazole nucleus, a benzothiazole nucleus or a benzoselenazole nucleus; and R.sub.3 and R.sub.4, which may be the same or different, each represents an aliphatic group and at least one of R.sub.Type: GrantFiled: July 25, 1975Date of Patent: August 24, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Haruo Takei, Akira Sato, Tadashi Ikeda
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Patent number: 3975199Abstract: A silver halide photographic emulsion having improved sensitivity and comprising an emulsion containing photosensitive silver halide crystals and a solid basic metal oxide selected from the group consisting of magnesium oxide, calcium oxide and a compound oxide of zinc and aluminum.Type: GrantFiled: December 18, 1974Date of Patent: August 17, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Yamashita, Yutaka Sakasai
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Patent number: 3973968Abstract: An imagewise-exposed, light-sensitive silver halide color photographic material is developed, by use of developer, in the presence of a compound of the general formula: ##EQU1## wherein A is a residue formed by removing one of the hydrogen atoms of the active methylene group of an active methylene group-containing yellow image-forming coupler of the acyl acetanilide type; X is a hydrogen atom, or an alkyl, acyl, carboxymethyl, alkoxycarbonylmethyl, carbamylmethyl, aryl, aralkyl, nitro or amino group; and Y and Z are individually a hydrogen atom, or an alkyl, ureido, aryl, aralkyl, benzylidene, styryl, or anilino group.Type: GrantFiled: April 6, 1972Date of Patent: August 10, 1976Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Mitsuto Fujiwhara, Syunji Matsuo, Tamotsu Kojima
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Patent number: 3973979Abstract: Improved 5-pyrazolone couplers of the following formula ##SPC1## wherein R,R.sub.1 R.sub.2,X and A denotes as described hereinafter for use in lightsensitive color photographic materials which are easy to prepare and give rise after chromogenic development to magenta dyes with improved stability to light.Type: GrantFiled: May 14, 1974Date of Patent: August 10, 1976Assignee: AGFA-Gevaert, A.G.Inventors: Ernst Meier, Hans Glockner, Karl Kuffner, Immo Boie, Karl-Wilhelm Schranz
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Patent number: 3966475Abstract: Novel yellow forming color couplers for use in silver halide color photography are described which correspond to the formula:R--COCHXCONH--Ar--SO.sub.2 OYwherein R represents alkyl or phenyl, X represents hydrogen or a displaceable group; Ar represents phenylene and Y represents a carbocyclic aryl group.Type: GrantFiled: March 18, 1974Date of Patent: June 29, 1976Assignee: AGFA-GEVAERT N.V.Inventors: Raphael Karel Van Poucke, Freddy Carolus Baeyens
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Patent number: 3963499Abstract: A photographic light-sensitive material comprising a support having thereon a hydrophilic colloid layer containing at least two surface active agents selected from the group consisting of compounds represented by the general formula (I) ##EQU1## and the general formula (II)R.sub.3 -- SO.sub.3 M (II)wherein R.sub.1 and R.sub.2 each represents an aliphatic residue with the sum of the number of carbon atoms contained in R.sub.1 and R.sub.2 ranging from about 8 to 32; R.sub.3 represents an aliphatic residue having about 8 to 20 carbon atoms; and M represents a cation or a cationic group capable of forming a salt with a sulfonic acid. The surface active agents have no toxic physiological action and high biodegradability.Type: GrantFiled: October 15, 1974Date of Patent: June 15, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Hideki Naito, Nobuo Yamamoto, Masakazu Yoneyama
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Patent number: 3961963Abstract: A photographic material comprising a support having thereon a photosensitive silver halide emulsion layer containing a hydroquinone derivative which releases a development inhibitor or a development accelerator at development and including an absorbing colloid layer for adsorbing the development inhibitor or accelerator containing silver halide particles which are not substantially developed by development on the silver halide emulsion layer or between the silver halide emulsion layer and the support.Type: GrantFiled: September 13, 1974Date of Patent: June 8, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Toshiaki Aono
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Patent number: 3961960Abstract: A multilayer color photographic material with improved color reproduction comprising a support having thereon at least two photosensitive silver halide emulsion layers which provide color images having different colors from each other, the multilayer color photographic material containing at least one interlayer color correction coupler as defined hereinafter.Type: GrantFiled: June 19, 1974Date of Patent: June 8, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Jun Hayashi, Atsuaki Arai, Nobuo Furutachi, Harumi Katsuyama
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Patent number: 3960571Abstract: A color photographic light-sensitive material having a silver halide emulsion layer containing a 1-phenyl-2-pyrazol-5-one magenta color-forming coupler, in which the 1-phenyl group of the coupler is substituted (1) with a R.sub.1 OOC-group, wherein R.sub.1 represents a group having about 8 to 26 carbon atoms, or (2) with a R.sub.2 OOC-group and a R.sub.3 OOC-group, wherein R.sub.2 and R.sub.3, which may be the same or different, each represents a group having about 4 to 18 carbon atoms; and in which the 3-position of the pyrazolone is substituted with an acylamino group, an ureido group, an alkoxy group, an amino group or an anilino group. The color photographic light-sensitive material provides stable magenta dye images having good spectral absorption characteristics.Type: GrantFiled: September 27, 1974Date of Patent: June 1, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Akio Okumura, Yukio Yokota, Kozo Inouye, Keisuke Shiba, Minoru Yamada
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Patent number: 3960570Abstract: A color photographic silver halide light-sensitive material containing a 2-equivalent alpha-acylacetoamide yellow dye-forming coupler and a monoalkylhydroquinone.Type: GrantFiled: February 11, 1974Date of Patent: June 1, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasushi Oishi, Reiichi Ohi, Yoshio Kosuge
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Patent number: 3960568Abstract: A silver halide photographic material having increased sensitivity and gradient and being free from fog formation on storage, comprising a support and an emulsion layer containing very fine silver halide grains and containing a nitrogen-containing heterocyclic organic compound having a hydroxylamino group, such as 2-hydroxylamino-4,6-di(ethylamino)-1,3,5-triazine or 2,4-di(hydroxylamino)-6-diethylamino-1,3,5-triazine. The photographic material is useful for recording fine images with a superior sharpness, and the incorporation of the heterocyclic compound increases the sensitivity in spite of the fine grain size of the silver halide.Type: GrantFiled: November 18, 1975Date of Patent: June 1, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Tohru Sueyoshi, Yoshiyuki Nakazawa, Yoshuhara Nakamura, Reiichi Ohi, Tokiharu Kondo
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Patent number: 3956339Abstract: 4-Pyridinio-5-pyrazolone salts useful as dyes and particularly useful as intermediates for photographic couplers and processes for the preparation thereof.Type: GrantFiled: September 17, 1974Date of Patent: May 11, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Furutachi, Atsuaki Arai
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Patent number: 3954478Abstract: A silver halide light-sensitive material which comprises a light-sensitive silver halide emulsion containing a compound represented by the following formula (I): ##SPC1##wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom or a lower alkyl group; and R.sub.6 and R.sub.7 each represents a hydrogen atom, a lower alkyl group or a lower alkoxy group or can combine to form a condensed ring, and X.sup.- represents an anion.Type: GrantFiled: December 23, 1974Date of Patent: May 4, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoki Arai, Reiichi Ohi
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Patent number: 3947272Abstract: Novel magenta forming colour couplers for use in silver halide colour photography are described which correspond to the formula: ##EQU1## wherein R.sub.1 represents hydrogen, alkyl or aryl; R.sub.2 represents fluoroalkyl, cyanoalkyl or phenyl; X is hydrogen or a displaceable group; Ar represents phenylene and Y represents alkyl, aryl, alkylamino, arylamino or alkylarylamino.Type: GrantFiled: March 18, 1974Date of Patent: March 30, 1976Assignee: Agfa-Gevaert, N. V.Inventors: Hector Alfons Vanden Eynde, Raphael Karel Van Poucke
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Patent number: 3945832Abstract: A direct positive silver halide photographic emulsion containing1. at least one dimethine dye having the general formula (I): ##EQU1## 2. AT LEAST ONE COMPOUND HAVING THE GENERAL FORMULA (II): ##SPC1##3. at least one compound having the general formula (III) ##EQU2## or the general formula (IV) ##SPC2##wherein Y, Y.sub.o, Z, L.sub.1, L.sub.2, R.sub.o, m, n, X, Z.sub.1, R.sub.1, X.sub.1, a, p, q, Y.sub.1, Y.sub.2, m.sub.1, R.sub.3, r, X.sub.2 and X.sub.3 are as hereinafter defined.Type: GrantFiled: March 27, 1974Date of Patent: March 23, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Masanao Hinata, Reiichi Ohi, Tadao Shishido
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Patent number: 3941601Abstract: This invention relates to a color photographic material with at least one silver halide emulsion layer having improved stability against crystallization and which contains in dispersed form a open chain keto methylene coupler a naphtholic or pyrazolone color coupler substituted with a 2-cyclo-pentyl-4-t-butyl-phenoxy group in a non-coupling position.Type: GrantFiled: December 9, 1974Date of Patent: March 2, 1976Assignee: AGFA-Gevaert, A.G.Inventors: Willibald Pelz, Hans-Heinrich Credner, Walter Schulte, Alfons Klein, Karlfried Wedemeyer, Fritz Nittel
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Patent number: 3941600Abstract: Silver halide emulsion layers are formed by applying a water-soluble silver halide complex to a gelled substrate, and treating to decomplex to form silver halide crystals therein.Type: GrantFiled: July 27, 1973Date of Patent: March 2, 1976Assignee: Polaroid CorporationInventor: Vivian K. Walworth
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Patent number: 3938995Abstract: Color photographic elements, compositions and processes for producing color negative images are described which employ a leuco dye comprising the reaction product of a color forming coupler and a N,N-dialkyl-p-phenylenediamine having an electronegative group attached to the benzene ring. The leuco dye is stable against aerial oxidation and can be developed to its corresponding dye with certain black and white developing compositions.Type: GrantFiled: July 10, 1974Date of Patent: February 17, 1976Assignee: Eastman Kodak CompanyInventors: Thomas Edward Gompf, William Henry Faul
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Patent number: 3936300Abstract: The present invention is directed to novel photographic products for use in color diffusion transfer systems wherein at least one of the layers of the film unit contains an amount of a glucoside humectant effective to stabilize the silver halide emulsion(s) thereof against fog during storage.Type: GrantFiled: August 30, 1974Date of Patent: February 3, 1976Assignee: Polaroid CorporationInventor: Paul A. Cardone
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Patent number: 3936303Abstract: A silver halide photographic photosensitive element having a hydrophilic colloidal layer prepared by dispersing photographic additives in a fatty oil which is liquid at room temperature; which boils at temperatures higher than 250.degree.C under atmospheric pressure; which is soluble in water in a proportion of less than about 10% by weight at 25.degree.C; and which dissolves water in a proportion of less than about 5% by weight at 25.degree.C, and a developing method thereof.Type: GrantFiled: July 3, 1974Date of Patent: February 3, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Seiiti Kubodera, Hideki Naito, Takeshi Hirose
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Patent number: 3935015Abstract: A color photographic material having differently sensitized silver halide emulsion layers including a silver halide emulsion layer containing a 3-anilino-5-pyrazolone magenta dye-forming coupler, the coupler having a halogen atom or an alkoxyl group at the 2-position of the anilino group and an aliphatic acylamino group at the 5-position of the anilino group.Type: GrantFiled: February 22, 1974Date of Patent: January 27, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Atsuaki Arai, Yasushi Oishi, Akio Okumura, Minoru Yamada, Yukio Yokota, Kozo Inouye
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Patent number: 3935016Abstract: A color photographic material comprising a support having coated thereon at least one silver halide emulsion layer containing a magenta dye forming coupler having a 3-anilino-5-pyrazolone ring in which the ortho position of the anilino group at the 3-position is substituted with a halogen atom, an alkyl group, an alkoxy group, an amide group, an aryl group, an aryloxy group, a cyano group, a nitro group, a hydroxyl group, or an amino group and having a hydrophobic residue of 8 to 32 carbon atoms, the silver halide emulsion layer or an emulsion layer adjacent to the silver halide emulsion layer containing a hydroquinone derivative having at least one substituent of at least 8 carbon atoms or a precursor capable of providing such a hydroquinone derivative by hydrolysis.The color photographic material provides magenta dye images having good color separation and less color fog and less color stains in the highlight areas.Type: GrantFiled: April 15, 1974Date of Patent: January 27, 1976Assignee: Fuji Photo Film Company, Ltd.Inventors: Tokio Nishimura, Minoru Yamada, Hiroyuki Amano, Yasushi Oishi
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Patent number: 3933501Abstract: Color photographic elements containing silver halide and incorporated color-forming materials are described. These elements contain at least two differentially light-sensitive emulsion layers, the overlying layer being sensitive to the relatively shorter wavelengths and containing at least one yellow dye-forming color coupler which has the unusual ability to inhibit the reaction of competing couplers (such as citrazinic acid, for example) when competing couplers are used in color developing solutions in the conventional manner. Use of these couplers in the overlying (color) layer of multi-layer color photographic elements makes it possible to produce colored images having improved graininess.Couplers having this unusual capability are selected from those having the structures: ##SPC1##Wherein R.sub.1, R.sub.2 and R.sub.3 are as defined herein.Type: GrantFiled: June 10, 1974Date of Patent: January 20, 1976Assignee: Eastman Kodak CompanyInventors: Robert G. Cameron, Dan Neuberger
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Patent number: 3930866Abstract: A color photographic material having at least one silver halide emulsion layer containing a 3-anilino-5-pyrazolone type magenta dye forming coupler and a phenolic compound for improving the light fastness of the magenta dye formed by the coupling reaction of the magenta dye forming coupler with the oxidation product of a color developing agent in combination with a nucleus-substituted hydroquinone, in which the reduction of the coupling reactivity of the magenta dye forming coupler during the storage of the color photographic material caused by the presence of the phenolic compound is prevented efficiently.Type: GrantFiled: April 23, 1974Date of Patent: January 6, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasushi Oishi, Minoru Yamada, Hiroyuki Amano, Tokio Nishimura
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Patent number: 3930863Abstract: An incorporated-coupler type multi-layer color photographic sensitive material comprising a support and at least two photosensitive emulsion layers thereon which form images having a different color from each other on color development, wherein at least one of the photosensitive emulsion layers comprises two or more unit layers, with at least one of the unit layers containing a hydroquinone derivative. Interlayer color correction is obtained in the color photographic sensitive material.Type: GrantFiled: April 15, 1974Date of Patent: January 6, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Toshiaki Aono, Reiichi Ohi, Tadao Shishido
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Patent number: 3930861Abstract: Novel magenta-forming 3-anilino-2-pyrazolin-5-one colour couplers for use in silver halide photography are described wherein the anilino group carries an aryloxysulphonyl group.Type: GrantFiled: March 18, 1974Date of Patent: January 6, 1976Assignee: Agfa-Gevaert N.V.Inventors: Raphael Karel Van Poucke, Hector Alfons Vanden Eynde, Leo August Van Wijnsberghe
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Patent number: RE28760Abstract: Photographic elements are provided which feature a support having coated thereon a first photographic silver halide emulsion layer containing image-forming coupler and development inhibitor-releasing coupler; and, a second silver halide emulsion layer containing photographic image-forming coupler, the second layer having a faster effective speed sensitivity than the first layer. Such elements have high contrast for faint images and an extended latitude of low contrast for bright images.Type: GrantFiled: August 20, 1975Date of Patent: April 6, 1976Assignee: Eastman Kodak CompanyInventors: John C. Marchant, Robert F. Motter